CN104942479A - Flux paste consisting of microcapsule activating agents and preparation method thereof - Google Patents
Flux paste consisting of microcapsule activating agents and preparation method thereof Download PDFInfo
- Publication number
- CN104942479A CN104942479A CN201510394976.6A CN201510394976A CN104942479A CN 104942479 A CN104942479 A CN 104942479A CN 201510394976 A CN201510394976 A CN 201510394976A CN 104942479 A CN104942479 A CN 104942479A
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- CN
- China
- Prior art keywords
- flux
- paste
- weld
- prepare
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Abstract
The invention relates to flux paste consisting of microcapsule activating agents; citric acid and malic acid are selected as activating agents in flux; the wetting angle, the spreading performance and the thermal weight loss decomposition characteristic are used as measurement indexes to perform the activating agent selection and the ratio optimization; high and low boiling point solvents are compounded to prepare the flux; acrylic resins are used as a film forming material to prepare capsule walls of an active substance microcapsule; and all components of the flux are optimized through an orthogonal test. The performance test of the flux paste is performed according to the industrial standard; the performance comparison is performed between the flux paste and domestic excellent flux; and three prepared fluxes are respectively prepared to soldering paste with Sn37Pb soldering micropowder and Sn3Ag2.8Cu leadless soldering micropowder to compare and research the welding performance. The flux paste can improve the activity of the activating agents, reduce the residuals of the flux paste and reduce the post-welding corrosion, is excellent in usability, protects the environment, and can save the resource.
Description
Technical field
The present invention relates to weld-aiding cream of microcapsules activator composition and preparation method thereof, particularly relate to a kind of water-soluble weld-aiding cream and preparation method thereof.
Background technology
Weld-aiding cream preparation process traditional at present none be not under high-temperature and high-pressure conditions by solvent and activator by a certain percentage, distinctive technique is mixed with out the lotion of required viscosity and rheological characteristic.The safety and health of human body in the smog injury produced in process of production, and damages atmospheric environment.Development normal temperature and pressure environment prepares the trend that weld-aiding cream is future development, and developing water dissolubility weld-aiding cream has a extensive future especially, not only environmental protection but also economize on resources.
Summary of the invention
The object of the present invention is to provide a kind of weld-aiding cream using microcapsules activator to form and preparation method thereof, can bioactivator activity be improved, reduce weld-aiding cream and remain, reduce postwelding corrosivity.
To achieve these goals, technical scheme of the present invention is as follows.
Use the weld-aiding cream that microcapsules activator forms, be made up of the activating agent in scaling powder citric acid and malic acid, by acrylic resin as filmogen, prepare the cyst material of active substance microcapsule, and add organic amine, wherein, the mass ratio of citric acid and malic acid is 5:2; Organic acid: organic amine: cyst material mass ratio is 7:3:20 ± 1.
The preparation method of above-mentioned weld-aiding cream is: select citric acid and malic acid as the activating agent in scaling powder, using angle of wetting, spreading property and thermal weight loss resolution characteristic as measurement index, has carried out activating agent screening and ratio optimization; Adopt high and low boiling point solvent complex treatment to prepare scaling powder, using acrylic resin as filmogen, prepare the cyst wall of active substance microcapsule; By orthogonal test, various flux ingredients is optimized.According to professional standard performance test carried out to it and carry out performance comparison with domestic excellent scaling powder; The pre-test ratio of optimization citric acid and malic acid is 5:2; Organic acid: organic amine: the most applicable preparation weld-aiding cream of microencapsulated active agent prepared when cyst material is 7:3:20 ± 1; By prepared three kinds of scaling powders respectively with Sn
37pb scolding tin micro mist and Sn
3ag
2.8cu lead-free solder powder prepares solder(ing) paste, its welding performance of comparative study.
This beneficial effect of the invention is: above-mentioned weld-aiding cream can improve bioactivator activity, and decrease weld-aiding cream and remain, reduce postwelding corrosivity, serviceability is good, not only environmental protection but also can economize on resources.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is described, better to understand the present invention.
Embodiment
Use the weld-aiding cream that microcapsules activator forms in the present embodiment, be made up of the activating agent in scaling powder citric acid and malic acid, by acrylic resin as filmogen, prepare the cyst material of active substance microcapsule, and add organic amine, wherein, the mass ratio of citric acid and malic acid is 5:2; Organic acid: organic amine: cyst material mass ratio is 7:3:20 ± 1.
The preparation method of above-mentioned weld-aiding cream is: select citric acid and malic acid as the activating agent in scaling powder, using angle of wetting, spreading property and thermal weight loss resolution characteristic as measurement index, has carried out activating agent screening and ratio optimization; Adopt high and low boiling point solvent complex treatment to prepare scaling powder, using acrylic resin as filmogen, prepare the cyst wall of active substance microcapsule; By orthogonal test, various flux ingredients is optimized.According to professional standard performance test carried out to it and carry out performance comparison with domestic excellent scaling powder; The pre-test ratio of optimization citric acid and malic acid is 5:2; Organic acid: organic amine: the most applicable preparation weld-aiding cream of microencapsulated active agent prepared when cyst material is 7:3:20 ± 1; By prepared three kinds of scaling powders respectively with Sn
37pb scolding tin micro mist and Sn
3ag
2.8cu lead-free solder powder prepares solder(ing) paste, its welding performance of comparative study.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (2)
1. the weld-aiding cream using microcapsules activator to form, it is characterized in that: be made up of the activating agent in scaling powder citric acid and malic acid, by acrylic resin as filmogen, prepare the cyst material of active substance microcapsule, and add organic amine, wherein, the mass ratio of citric acid and malic acid is 5:2; Organic acid: organic amine: cyst material mass ratio is 7:3:20 ± 1.
2. the weld-aiding cream of use microcapsules activator composition according to claim 1, it is characterized in that: the preparation method of described weld-aiding cream is: select citric acid and malic acid as the activating agent in scaling powder, using angle of wetting, spreading property and thermal weight loss resolution characteristic as measurement index, activating agent screening and ratio optimization are carried out; Adopt high and low boiling point solvent complex treatment to prepare scaling powder, using acrylic resin as filmogen, prepare the cyst wall of active substance microcapsule; By orthogonal test, various flux ingredients is optimized; According to professional standard performance test carried out to it and carry out performance comparison with domestic excellent scaling powder; The pre-test ratio of optimization citric acid and malic acid is 5:2; Organic acid: organic amine: the most applicable preparation weld-aiding cream of microencapsulated active agent prepared when cyst material is 7:3:20 ± 1; By prepared three kinds of scaling powders respectively with Sn
37pb scolding tin micro mist and Sn
3ag
2.8cu lead-free solder powder prepares solder(ing) paste, its welding performance of comparative study.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394976.6A CN104942479A (en) | 2015-07-08 | 2015-07-08 | Flux paste consisting of microcapsule activating agents and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394976.6A CN104942479A (en) | 2015-07-08 | 2015-07-08 | Flux paste consisting of microcapsule activating agents and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104942479A true CN104942479A (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510394976.6A Pending CN104942479A (en) | 2015-07-08 | 2015-07-08 | Flux paste consisting of microcapsule activating agents and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104942479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809245A (en) * | 2020-12-31 | 2021-05-18 | 北京康普锡威科技有限公司 | Active agent for solder paste, preparation method of active agent, soldering paste, low-temperature solder paste and preparation method of photovoltaic module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513732A (en) * | 2011-12-15 | 2012-06-27 | 中南大学 | Halogen-free cleaning-free rosin flux, and preparation and application thereof |
| CN102825398A (en) * | 2012-08-08 | 2012-12-19 | 北京工业大学 | Soldering flux matched with lead-free solder |
| CN103286477A (en) * | 2013-05-22 | 2013-09-11 | 中南大学 | Soldering flux for lead-free solder and preparation method of soldering flux |
| CN103769775A (en) * | 2014-02-20 | 2014-05-07 | 苏州龙腾万里化工科技有限公司 | Capsulation water-based washing-free flux for lead-free welding flux and preparation method |
| CN104191109A (en) * | 2014-08-13 | 2014-12-10 | 深圳市汉尔信电子科技有限公司 | Active agent for lead-free solder paste, preparation method thereof and lead-free solder paste |
-
2015
- 2015-07-08 CN CN201510394976.6A patent/CN104942479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513732A (en) * | 2011-12-15 | 2012-06-27 | 中南大学 | Halogen-free cleaning-free rosin flux, and preparation and application thereof |
| CN102825398A (en) * | 2012-08-08 | 2012-12-19 | 北京工业大学 | Soldering flux matched with lead-free solder |
| CN103286477A (en) * | 2013-05-22 | 2013-09-11 | 中南大学 | Soldering flux for lead-free solder and preparation method of soldering flux |
| CN103769775A (en) * | 2014-02-20 | 2014-05-07 | 苏州龙腾万里化工科技有限公司 | Capsulation water-based washing-free flux for lead-free welding flux and preparation method |
| CN104191109A (en) * | 2014-08-13 | 2014-12-10 | 深圳市汉尔信电子科技有限公司 | Active agent for lead-free solder paste, preparation method thereof and lead-free solder paste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809245A (en) * | 2020-12-31 | 2021-05-18 | 北京康普锡威科技有限公司 | Active agent for solder paste, preparation method of active agent, soldering paste, low-temperature solder paste and preparation method of photovoltaic module |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |
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| RJ01 | Rejection of invention patent application after publication |